DRAG DROP

With recommended app architecture. Fill the following diagram, which shows how all the modules usually should interact with one another after designing the app (drag modules to correct places).

Select and Place:

In our TeaViewModel class, that extends ViewModel, we have such prorerty: val tea: LiveData

An observer in our Activity (type of mViewModel variable in example is TeaViewModel) is set in this way:

mViewModel!!.tea.observe(this, Observer { tea: Tea? -> displayTea(tea) })

What will be a correct displayTea method definition?

A. private fun displayTea()

B. private fun displayTea(tea: Tea?)

C. private fun displayTea(tea: LiveData?)

D. private fun displayTea(tea: LiveData?)

If you want the Database Inspector to automatically update the data it presents as you interact with your running app, check the Live updates checkbox at the top of the inspector window. While live updates are enabled, what happens with the table in the inspector window?

A. It is still editable. You can modify data in a table by double-clicking a cell, typing a new value, and pressing Enter.

B. It becomes read-only and you cannot modify its values.

C. It becomes read-only, but you cannot see its updated values before updating the data by clicking the Refresh table button at the top of the inspector window.

What is the incorrect statement about Data Access Object (androidx.room.Dao)?

A. Data Access Objects are the main classes where you define your database interactions. They can include a variety of query methods.

B. The class marked with @Dao should either be an interface or an abstract class. At compile time, Room will generate an implementation of this class when it is referenced by a Database.

C. An abstract @Dao class can optionally have a constructor that takes a Database as its only parameter.

D. It is recommended to have only one Dao class in your codebase for all tables.

"Set the activity content to an explicit view. This view is placed directly into the activity's view hierarchy. It can itself be a complex view hierarchy." This can be done by calling method:

A. findViewById

B. setContentView

C. setActionBar

D. setContentTransitionManager

E. setTheme